Battery charger



FIG. 1 is a perspective view thereof of a battery charger in accordance with my invention;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a right perspective view thereof;

FIG. 5 is a left side perspective view thereof;

FIG. 6 is a top perspective view thereof; and,

FIG. 7 is a bottom perspective view of a battery charger. 

The ornamental design for battery charger, as shown and described. 